K. Marei, A., and A. N. Saleh. “Effect of Bulk Defect Concentration on Capacitance Characteristics of an Experimentally Calibrated CIGS Solar Cell Using SCAPS-1D via Admittance Spectroscopy”. Central Asian Journal of Medical and Natural Science, vol. 7, no. 4, July 2026, pp. 54-65, doi:10.51699/cajmns.v7i4.3342.